diff --git a/config.py b/config.py
index b5ec7db2d..a7b4e4741 100644
--- a/config.py
+++ b/config.py
@@ -64,17 +64,6 @@
 $SUBJECTS_DIR used by the Freesurfer software.
 """
 
-daysback: Optional[int] = None
-"""
-warning:
-     This parameter will soon be removed!
-     Anonymization should be done on the BIDS dataset **before** running
-     the Study Template!
-
-If not ``None``, apply a time shift to dates to adjust for limitateions
-of FIFF files.
-"""
-
 interactive: bool = False
 """
 If True, the scripts will provide some interactive elements, such as
diff --git a/docs/source/settings/general.md b/docs/source/settings/general.md
index 7e491fa53..44a919d90 100644
--- a/docs/source/settings/general.md
+++ b/docs/source/settings/general.md
@@ -2,7 +2,6 @@
 ::: config.bids_root
 ::: config.deriv_root
 ::: config.subjects_dir
-::: config.daysback
 ::: config.interactive
 ::: config.crop
 ::: config.sessions
diff --git a/scripts/preprocessing/01-import_and_maxfilter.py b/scripts/preprocessing/01-import_and_maxfilter.py
index 27283bf6f..e09abbdbd 100644
--- a/scripts/preprocessing/01-import_and_maxfilter.py
+++ b/scripts/preprocessing/01-import_and_maxfilter.py
@@ -82,7 +82,7 @@ def rename_events(raw, subject, session):
                f'they are not present in the BIDS input data:\n'
                f'{", ".join(sorted(list(events_not_in_raw)))}')
         if config.on_rename_missing_events == 'warn':
-            logger.warn(msg)
+            logger.warning(msg)
         else:
             raise ValueError(msg)
 
@@ -211,9 +211,6 @@ def load_data(bids_path):
     raw = read_raw_bids(bids_path=bids_path,
                         extra_params=extra_params)
 
-    if config.daysback is not None:
-        raw.anonymize(daysback=config.daysback)
-
     if subject != 'emptyroom':
         # Crop the data.
         if config.crop is not None:
diff --git a/scripts/report/01-make_reports.py b/scripts/report/01-make_reports.py
index 3fe67e698..7726426c7 100644
--- a/scripts/report/01-make_reports.py
+++ b/scripts/report/01-make_reports.py
@@ -437,7 +437,7 @@ def add_event_counts(*,
         df_events = count_events(BIDSPath(root=config.bids_root,
                                           session=session))
     except ValueError:
-        logger.warn('Could not read events.')
+        logger.warning('Could not read events.')
         df_events = None
 
     if df_events is not None:
diff --git a/tests/configs/config_ds000246.py b/tests/configs/config_ds000246.py
index 260d5823f..5f814951f 100644
--- a/tests/configs/config_ds000246.py
+++ b/tests/configs/config_ds000246.py
@@ -15,5 +15,4 @@
 conditions = ['standard', 'deviant', 'button']
 contrasts = [('deviant', 'standard')]
 decode = True
-daysback = -365 * 110
 on_error = 'debug'